5.1.1

Chapter 9 Behaviors 354
Parameters in the Inspector
•
Aect Subobjects: A checkbox, available when this behavior is applied to an object that
contains multiple objects, such as a group, a particle emitter, a replicator, or a text layer. When
this checkbox is selected, all objects in the parent object are aected individually. When this
checkbox is deselected, all objects in the parent object are aected by the behavior together.
•
Rotation Axis: A pop-up menu that rotates the object around the X, Y, or Z axis. You can also
select All to rotate the object around all three axes. The default rotation axis is Z.
•
Axis: A pop-up menu that sets whether the object aligns to its horizontal or vertical axis.
•
Invert Axis: A checkbox that ips the orientation with which the object aligns to the motion.
•
Spring Tension: A slider that adjusts how quickly the object’s rotation changes to match a
change in the object’s direction. Lower values create a delay between a change to an object’s
position and its subsequent change in rotation. Higher values create more responsive changes
in rotation.
•
Drag: A slider that adjusts whether the change in rotation made by this behavior overshoots
the new direction of the object. Low drag values result in springy changes in rotation, where
the object rotates back and forth as it overshoots changes in direction. High drag values
dampen this eect, making the object’s rotation stick more closely to the changes made in
rotation. Higher values also cause the object’s rotation to lag behind the object’s change
in position.
Attracted To
An object with the Attracted To behavior applied moves toward a single specied target, the
object of attraction. Additional parameters allow you to adjust the area of inuence that denes
how close an object must be to move toward the object of attraction, and how strongly it
is attracted.
Resulting
animation path
Target object
Object with Attracted To behavior
The Drag parameter lets you dene whether attracted objects overshoot and bounce about
the attracting object, or whether they eventually slow down and stop at the position of the
target object.
You can apply two or more Attracted To behaviors to a single object, each with a dierent object
of attraction, to create tug-of-war situations where the object bounces among all objects it’s
attracted to.
Parameters in the Inspector
•
Aect Subobjects: A checkbox, available when this behavior is applied to an object that
contains multiple objects, such as a group, a particle emitter, a replicator, or a text layer. When
this checkbox is selected, all objects in the parent object are aected individually. When this
checkbox is deselected, all objects in the parent object are aected by the behavior together.
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